I have several notebooks in use but this laptop is by far the worst! The Mouse and the touchpad is absolutely useless! After a short period of the Mouse jumps wildly and the projector will not be operated ... Only a restart caused lets the Mouse short time work again before the same problem occurs. The touchpad is absolutely useless - even the clicks (right left) are not clean feasible without the Mouse it jumps ... The Internet provides this already very many reports ... What is Acer is allowed here an impertinence!